DE2251181B2 - Contact screw with milled slot for electrical branch terminals - Google Patents
Contact screw with milled slot for electrical branch terminalsInfo
- Publication number
- DE2251181B2 DE2251181B2 DE19722251181 DE2251181A DE2251181B2 DE 2251181 B2 DE2251181 B2 DE 2251181B2 DE 19722251181 DE19722251181 DE 19722251181 DE 2251181 A DE2251181 A DE 2251181A DE 2251181 B2 DE2251181 B2 DE 2251181B2
- Authority
- DE
- Germany
- Prior art keywords
- screw
- contact
- slot
- face
- milling
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
- H01R4/28—Clamped connections, spring connections
- H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
- H01R4/36—Conductive members located under tip of screw
Landscapes
- Connections Arranged To Contact A Plurality Of Conductors (AREA)
- Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)
- Connections By Means Of Piercing Elements, Nuts, Or Screws (AREA)
Description
DT-PS 61 078 bekannt. Diese bekannte Schraube hat keine Fräsnuten, sondern nur eine Bohrung, die das von der Bohrung ausgestanzte Isoliermaterial aufnehmen soll. In den Leiter sollen die Schrauben nicht eindringen, so daß die Kontair tfläche auf die Stirnfläche beschränkt bleibt.DT-PS 61 078 known. This well-known screw does not have any milled grooves, but only a hole that allows the to accommodate punched insulation material from the hole. The screws should not go into the ladder penetrate so that the Kontair tfläche remains limited to the end face.
Mehrere Ausführungsbeispiele der Erfindung sind im folgenden an Hand der Zeichnung beschrieben, in dieser zeigenSeveral embodiments of the invention are described below with reference to the drawing, in this show
F i g. 1 bis 4 zwei verschiedene Ausführungsformen in Seiten- und Stirnansicht von Kontaktschrauben gemäß der Erfindung undF i g. 1 to 4 two different embodiments in side and front view of contact screws according to the invention and
F i g. 5 ein Anwendungsgebiet für eine Kontaktschraube in Verbindung mit einer elektrischen Abzweigklemme. »3F i g. 5 shows an area of application for a contact screw in connection with an electrical branch terminal. »3
Eine in F i g. 1 und 2 mit 1 bezeichnete Kontaktschraube besteht aus einem zylindrischen Gewindeteil 2 mit einer im Umriß sechskantigen Ausnehmung 3 für das Einsetzen eines Sechskantschlüssels und aus einem kegligen, im Durchmesser abgesetzten ao Teil 4, dessen Stirnseite 5 in F i g. 2 dargestellt ist. In der Stirnseite 5 beginnt ein Schlitz 6, der schräg zur Achse der Schraube verläuft. Die Mittelebene? dieses Schlitzes ist, wie F i g. 2 erkennen läßt, um die halbe Schlitzbreite gegenüber einer Ebene 8 versetzt, aj die parallel zu der Schlitzmittelebene 7 ist und die Achse der Kontaktschraube schneidet. Wie im übrigen F i g. 2 erkennen läßt, ist die Schlitztiefe in der Stirnebene am größten, sie nimmt nach oben hin ab, so daß das von der in der Drehrichtung der Schraube hintenliegende Schneidkante des Schlitzes abgeschnittene Material nach oben und gleichzeitig nach außen gefördert wird. Das Schlitzvolumen kann also klein sein. Weiter benötigt eine solche Kontakischraube infolge der gezeigten Lage des Schlitzes und auch dank der abnehmenden Tiefe des Schlitzes einen geringen Kraftaufwand beim Fräsen des massiven Materials. Der Verlauf des Schlitzgrundes ist in F i g. 5 mit einer gestrichelten Linie 9 dargestelltOne shown in FIG. 1 and 2 with 1 designated contact screw consists of a cylindrical threaded part 2 with a hexagonal recess 3 for the insertion of a hexagon wrench and from a conical, stepped ao part 4, the end face 5 of which in FIG. 2 is shown. In the end face 5 begins a slot 6 which runs obliquely to the axis of the screw. The middle plane? this Slot is, as shown in FIG. 2 reveals, offset by half the slot width with respect to a plane 8, aj which is parallel to the slot center plane 7 and intersects the axis of the contact screw. As for the rest F i g. 2 shows, the depth of the slot is greatest in the face plane, it decreases towards the top, so that the cutting edge of the slot which is at the rear in the direction of rotation of the screw is cut off Material is conveyed upwards and outwards at the same time. The slot volume can therefore be small. Furthermore, such a contact screw is required due to the shown position of the slot and also thanks to the decreasing depth of the slot, little effort is required when milling the massive Materials. The course of the bottom of the slot is shown in FIG. 5 shown with a dashed line 9
Eine in F i g. 3 und 4 dargestellte Konfaktschraube 10 unterscheidet sich von der nach F i g. 1 durch die Vorkehrung von zwei Schlitzen Il und 12, die zu beiden Seiten einer Mittelebene 8 der Schraube liegen und Schneidkanten 13 haben, die zu dieser Ebene parallel sind. Die Schneidkanten sind auch hier wieder um die halbe Schlitzbreite gegenüber der genannten Ebene 8 versetzt. Die Schlitze sind wiederam zur Schraubenachse geneigt, ihre Tiefe nimmt nach oben hin ab.One shown in FIG. 3 and 4 illustrated Konfaktscrew 10 differs from that according to FIG. 1 through the Provision of two slots 11 and 12, which lie on both sides of a central plane 8 of the screw and have cutting edges 13 which are parallel to this plane. The cutting edges are too here again offset by half the width of the slot with respect to the aforementioned plane 8. The slots are back inclined to the screw axis, its depth decreases towards the top.
In F i g. 5 ist eine Ader 25 eines mehradrigen Kabels im Querschnitt dargestellt. Die Ader liegt in einem Bügel 26, der vom Körper 27 einer Abzweigklemme getragen ist. Die bügeiförmig ausgebildete Abzweigklemme bildet die Mutter einer Kontaktschraube, wie sie beispielsweise in F i g. 1 und 2 dargestellt ist. Der konische Teil 4 der Kontaktschraube 1 hat sich in die Ader 25 eingefräst. Ein Ansatz 28 der bügeiförmigen Klemme hat eine Bohrung 29 zur Aufnahme einer Anschlußleitung 30, die mit der Ader 25 verbunden werden soll.In Fig. 5 shows a core 25 of a multi-core cable in cross section. The vein lies in a bracket 26 carried by the body 27 of a branch terminal. The bow-shaped The branch terminal forms the nut of a contact screw, as shown, for example, in FIG. 1 and 2 shown is. The conical part 4 of the contact screw 1 has been milled into the wire 25. A Approach 28 of the U-shaped terminal has a bore 29 for receiving a connecting line 30 which to be connected to wire 25.
Claims (5)
mit ihrem Frässchlitz bzw. Frässchlitzen die Isolation Kontaki&chrauben der beschriebenen Art bedin-The invention relates to a contact screw for forms, offset in diameter relative to the threaded part of electrical branch terminals with at least a 4 ° of the screw. In this way, a stop surface is obtained for the insertion of the screw axis in two mutually perpendicular milling operations which incline the milling depth on a plane and limit the desired dimension from the outer surface. There is therefore also a milling slot emanating from the screw, that is, there is no danger that if the clock screw is incorrectly applied, which is intended to make contact with an insulated milling screw, a short circuit between adjacent electrical conductors is produced by making 45 wires of a cable,
with their milled slot or milled slots, the insulation contacts & screws of the type described
weist. Mit solchen Schrauben können dann einwand- Durch die beschriebene Anordnung und Verset-There are contact screws with a milled slot of the end face outgoing slot, at least in known, which is arranged in the end face of the screw parallel to the end face of the screw by at least and symmetrically to a screw diameter 55 half a slot width in the direction of rotation of the screw and a certain constant opposite is offset from a plane parallel to it, depth in the direction of the longitudinal axis of the screw - which goes through the axis of the screw,
shows. Such screws can then be used properly.
Schlitzes. Eine Kontaktschraube mit Gewinde und mit einemFree results can be achieved if the slot width and tongue of the milling slots within the end face of the slot depth is exactly 60 screw for the respective application, as confirmed by numerous tests, that is, the volume of the slot is taken, the milling is facilitated, that is, the must be large enough to reduce the reaction force acting on the milled insulation screw. Pick up that and the milled conductor metal. This is of great advantage because the screw-on contact surface of the screw corresponds to its receiving housing of the junction terminal lighter face, reduced by the base area of the 65 can be held.
Slot. A threaded contact screw and with a
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722251181 DE2251181C3 (en) | 1972-10-19 | Contact screw with milled slot for electrical branch terminals | |
NL7314311A NL7314311A (en) | 1972-10-19 | 1973-10-17 | |
GB4834173A GB1424464A (en) | 1972-10-19 | 1973-10-17 | Contact screw with cutting slot for electrical branch terminals |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722251181 DE2251181C3 (en) | 1972-10-19 | Contact screw with milled slot for electrical branch terminals |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2251181A1 DE2251181A1 (en) | 1974-05-02 |
DE2251181B2 true DE2251181B2 (en) | 1974-08-22 |
DE2251181C3 DE2251181C3 (en) | 1977-07-21 |
Family
ID=
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020104278A1 (en) | 2020-02-18 | 2021-08-19 | Wieland Electric Gmbh | Piercing screw |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020104278A1 (en) | 2020-02-18 | 2021-08-19 | Wieland Electric Gmbh | Piercing screw |
DE102020104278B4 (en) | 2020-02-18 | 2021-12-09 | Wieland Electric Gmbh | Piercing screw |
Also Published As
Publication number | Publication date |
---|---|
GB1424464A (en) | 1976-02-11 |
DE2251181A1 (en) | 1974-05-02 |
NL7314311A (en) | 1974-04-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C3 | Grant after two publication steps (3rd publication) | ||
E77 | Valid patent as to the heymanns-index 1977 | ||
8327 | Change in the person/name/address of the patent owner |
Owner name: KOLLEKTRA METALL- UND KUNSTSTOFF-WERK GMBH, 6301 W |
|
8339 | Ceased/non-payment of the annual fee |